还是error LNK2005得问题

[xingzhe2001]

编译出现如下错误，简单的类，出错的是几个成员函数，把定义和实现分开就没事，和到一个文件中就不行了，我用了#ifndef #endif对了，raphicDemoView.obj : error LNK2005: "public: void __thiscall GLRender::Render(void)" (?Render@GLRender@@QAEXXZ) already defined in GraphicDemo.obj
GraphicDemoView.obj : error LNK2005: "private: void __thiscall GLRender::KillGLWindow(void)" (?KillGLWindow@GLRender@@AAEXXZ) already defined in GraphicDemo.obj
GraphicDemoView.obj : error LNK2005: "public: int __thiscall GLRender::InitGL(void)" (?InitGL@GLRender@@QAEHXZ) already defined in GraphicDemo.obj
GraphicDemoView.obj : error LNK2005: "private: void __thiscall GLRender::GLSupport(void)" (?GLSupport@GLRender@@AAEXXZ) already defined in GraphicDemo.obj
找不出原因，在网上查了都是该运行时库，改了出现这样的错误
Please use the /MD switch for _AFXDLL builds
咋办

[老夏Max]

使用多线程的运行期库！

[xingzhe2001]

我使用的是Debug multithreaded Dll库阿